Soils and Foundations最新文献_第6页

Slaking mechanisms of a mudstone and prediction of its number-size distribution considering shape evolution 考虑形态演化的泥岩溶蚀机理及数粒分布预测

IF 3.3 2区工程技术

Soils and Foundations Pub Date : 2025-09-01 Epub Date: 2025-09-05 DOI: 10.1016/j.sandf.2025.101682

Danxi Sun , Hailong Wang , Hideo Komine , Guojun Cai , Gaofeng Pan , Daichi Ito

{"title":"Slaking mechanisms of a mudstone and prediction of its number-size distribution considering shape evolution","authors":"Danxi Sun , Hailong Wang , Hideo Komine , Guojun Cai , Gaofeng Pan , Daichi Ito","doi":"10.1016/j.sandf.2025.101682","DOIUrl":"10.1016/j.sandf.2025.101682","url":null,"abstract":"<div><div>The wide distribution of mudstone poses challenges to efficient construction and safe long-term maintenance of infrastructure, primarily due to its susceptibility to slaking. To explore the slaking mechanisms, cyclic wetting–drying slaking tests under both atmospheric and vacuum conditions were conducted on natural mudstone collected from Akita Prefecture, Japan. A multi-view approach was employed to capture the evolution of three-dimensional particle shape, enabling quantitative analysis of slaking mechanisms and the development of number-size and surface area-size distribution models that account for shape effects. The results indicate that the atmospheric slaking proceeds more rapidly than vacuum slaking tests, attributed to the elimination of the air-breakage phenomenon. Shape evolution analysis reveals that the shell-like medium-sized particles possess higher specific surface areas, resulting from the typical layered slaking phenomenon observed during slaking. These layered fragments are attributed to differential swelling, driven by non-uniform moisture distribution in the specimens. The contribution of this mechanism is validated and quantitatively assessed through a comparative analysis of particle shape compositions across different slaking conditions. Finally, particle shape evolution is integrated into predictive models for number-size and surface area-size distributions. The performance of these models is verified against experimental measurements.</div></div>","PeriodicalId":21857,"journal":{"name":"Soils and Foundations","volume":"65 5","pages":"Article 101682"},"PeriodicalIF":3.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145003912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Characteristics and modelling of coral sand particle breakage under principal stress axis rotation 主应力轴旋转作用下珊瑚砂颗粒破碎特性及模型

IF 3.3 2区工程技术

Soils and Foundations Pub Date : 2025-09-01 Epub Date: 2025-08-12 DOI: 10.1016/j.sandf.2025.101666

Zhangqing Xuan , Yanyan Cai , Jin Yu , Peng Xue

{"title":"Characteristics and modelling of coral sand particle breakage under principal stress axis rotation","authors":"Zhangqing Xuan , Yanyan Cai , Jin Yu , Peng Xue","doi":"10.1016/j.sandf.2025.101666","DOIUrl":"10.1016/j.sandf.2025.101666","url":null,"abstract":"<div><div>To investigate the stress–strain characteristics and particle breakage laws of coral sand under the rotation of the principal stress axis—Objectives, the triaxial test and the principal stress axis rotation test were conducted on coral sand with varying consolidation confining pressures and compactness—Methods. Furthermore, a particle breakage model considering the irregularity and non-uniformity inherent in coral sand was established. The results show that: (1) Scanning electron microscopy (SEM) analysis and triaxial test demonstrates that the coral sand has strong non-coaxial characteristics. Both increased compactness and confining pressure enhance the strength of coral sand; (2) Coral sand undergoes shear expansion followed by gradual compression in triaxial shear, and demonstrates body shrinkage when its compactness is relatively high. The broken particles of coral sand are mainly large particles, small particles are less broken or not broken, and the disappearance of prism is the main type of particle breakage; (3) The form of particle breakage in coral sand under rotation of the principal stress axis is mainly grinding—Key Findings. The irregularity and non-uniformity of coral sand can be represented with the equivalent of non-coaxiality in the deformation and breakage process of the principal stress axis rotation, and a mathematical model has been established to characterize the breakage behavior of coral sand particles. Impressively, The model demonstrates high accuracy in predicting particle breakage under principal stress rotation (average error < 5 %).</div></div>","PeriodicalId":21857,"journal":{"name":"Soils and Foundations","volume":"65 5","pages":"Article 101666"},"PeriodicalIF":3.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144831465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Laboratory experiments on small-scale freezing sampling method for sand 砂土小尺度冻结取样方法的室内试验研究

IF 3.3 2区工程技术

Soils and Foundations Pub Date : 2025-09-01 Epub Date: 2025-09-05 DOI: 10.1016/j.sandf.2025.101657

Pei-Chen Hsieh , Takashi Kiyota , Toshihiko Katagiri , Masataka Shiga , Manabu Takemasa , Ryohei Kobayashi

{"title":"Laboratory experiments on small-scale freezing sampling method for sand","authors":"Pei-Chen Hsieh , Takashi Kiyota , Toshihiko Katagiri , Masataka Shiga , Manabu Takemasa , Ryohei Kobayashi","doi":"10.1016/j.sandf.2025.101657","DOIUrl":"10.1016/j.sandf.2025.101657","url":null,"abstract":"<div><div>The need to collect high-quality undisturbed samples to accurately determine in-situ liquefaction resistance of sandy soils in laboratory tests is widely recognized. Decades ago, the freezing sampling method was developed to minimize sample disturbance by pre-freezing the ground. However, due to the large scale and high cost of the work, this method is rarely used in common geotechnical surveys. To address this issue, a small-scale freezing sampling method has recently been developed. It reduces the sampling time and amount of required coolant, and can be applied to conventional borehole surveys. On the other hand, the quality of the samples collected by this new method has not been properly assessed. In this study, therefore, the appropriate conditions for inserting the freezing tube with the help of a cylindrical sand column were discussed, and the small-scale freezing sampling method was successfully implemented in a calibration chamber, whereby hollow cylindrical frozen samples with an outer diameter of 100 mm were collected within approximately 40 min and using only about 70 kg of liquid nitrogen. The focus of the quality assessments of the collected frozen samples was placed on the density and shear wave velocity measurements. The results showed that the changes in the small strain shear moduli were −0.5 % between the stages before and after the sampling, suggesting that the implementation of small-scale freezing sampling can be expected to improve the accuracy of in-situ liquefaction resistance estimates and, in turn, the accuracy of liquefaction assessments.</div></div>","PeriodicalId":21857,"journal":{"name":"Soils and Foundations","volume":"65 5","pages":"Article 101657"},"PeriodicalIF":3.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144996823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In-situ investigation on installation mechanisms of pre-bored grouted planted piles in deep and thick sand layers 深厚砂层中预钻孔灌注桩安装机理的现场研究

IF 3.3 2区工程技术

Soils and Foundations Pub Date : 2025-09-01 Epub Date: 2025-08-29 DOI: 10.1016/j.sandf.2025.101678

Jingwei Zhang , Zhencai Luo , Yunlong Liu , Bowen Zheng , Zhenguo Hou , Jin Kong

{"title":"In-situ investigation on installation mechanisms of pre-bored grouted planted piles in deep and thick sand layers","authors":"Jingwei Zhang , Zhencai Luo , Yunlong Liu , Bowen Zheng , Zhenguo Hou , Jin Kong","doi":"10.1016/j.sandf.2025.101678","DOIUrl":"10.1016/j.sandf.2025.101678","url":null,"abstract":"<div><div>Due to merits of low noise and vibration, the pre-bored planted method has been widely used in engineering practice to assist the installation of the prestressed high-strength concrete (PHC) piles in area where deep and thick sand layers are commonly encountered. However, the research on the influence mechanism of pile driving methods in hard soil layers mainly focuses on the static pressing method and the hammering method, while the penetration characteristics under pre-bored assistance remains unclear. Therefore, a full-scale field test was conducted to investigate the installation effects. The penetration mechanisms of the piles with pre-bored assistance in areas with a deep and thick sand layer was discussed. Besides, an analytical method was proposed to predict the energy (hammer blow counts) necessary to drive pile to design depth. The results showed that the pre-bored grouted planted method significantly reduced the energy required for pile driving, compared to both the hammering method and the pre-bored planted method. This was because pre-drilling reduced displaced soil volume and relieved lateral stress. The pile load transfer mechanism was optimized by pre-drilling, which effectively leveraged the high compressive strength of the deep and thick sand layers. Meanwhile, the shaft friction within the grouted depth was significantly enhanced by the permeation, cementation and reinforcement effects of the concrete slurry, thereby improving the pile bearing capacity. Furthermore, the analytical method proposed based on the cavity expansion theory was capable of predicting the energy required for pile driving, which could guide the selection of pile driving equipment with minimum energy consumption and prevent pile damage caused by excessive hammering.</div></div>","PeriodicalId":21857,"journal":{"name":"Soils and Foundations","volume":"65 5","pages":"Article 101678"},"PeriodicalIF":3.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144917494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on the hydraulic characteristics of natural levees by field surveys: Case study of the Kokai River, Japan 自然堤防水力特性的野外调查研究——以日本Kokai河为例

IF 3.3 2区工程技术

Soils and Foundations Pub Date : 2025-09-01 Epub Date: 2025-09-02 DOI: 10.1016/j.sandf.2025.101679

Wenyue Zhang , Mai Tabuchi , Tomotaka Yoshikawa , Akihiro Takahashi

{"title":"Study on the hydraulic characteristics of natural levees by field surveys: Case study of the Kokai River, Japan","authors":"Wenyue Zhang , Mai Tabuchi , Tomotaka Yoshikawa , Akihiro Takahashi","doi":"10.1016/j.sandf.2025.101679","DOIUrl":"10.1016/j.sandf.2025.101679","url":null,"abstract":"<div><div>As compensation for the limited experimental data from the borehole logs, geological knowledge is expected to contribute to better risk assessment of the river levee system. Although natural levees have long been recognized as related to the underseepage risk of river levees, limited quantitative knowledge of hydraulic characteristics is available. Field surveys are conducted at a site along the Kokai River in Japan to reveal the hydraulic characteristics of natural levee sediments. Sounding tests allow us to capture laminar structures in the natural levee sediments. Through in-situ seepage tests, it is found that the silty materials in the natural levee sediments have hydraulic conductivity in the order of around E-06 m/s. Based on the results from the field surveys, numerical spatial hydraulic conductivity models of natural levees are built by applying geostatistical methods, including indicator Kriging and indicator simulations. The methodology in this study shows a possibility of quantifying geological knowledge, which finally contributes to the quantitative risk assessment against underseepage and internal erosion.</div></div>","PeriodicalId":21857,"journal":{"name":"Soils and Foundations","volume":"65 5","pages":"Article 101679"},"PeriodicalIF":3.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144933048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental and numerical study on helical piles in aeolian sand: bearing behavior and design methods 风沙中螺旋桩的试验与数值研究：承载性能与设计方法

IF 3.3 2区工程技术

Soils and Foundations Pub Date : 2025-09-01 Epub Date: 2025-08-22 DOI: 10.1016/j.sandf.2025.101680

Yongping Li , Songzhao Qu , Jing Bai , Dongming Yang , Sangtian Hu , Lefu Di , Ruiyuan Han , Yijin Wu , Yuan Xiang , Dapeng Wang , Yi Zhang , Yonghua Guo , Zhe Zhang

{"title":"Experimental and numerical study on helical piles in aeolian sand: bearing behavior and design methods","authors":"Yongping Li , Songzhao Qu , Jing Bai , Dongming Yang , Sangtian Hu , Lefu Di , Ruiyuan Han , Yijin Wu , Yuan Xiang , Dapeng Wang , Yi Zhang , Yonghua Guo , Zhe Zhang","doi":"10.1016/j.sandf.2025.101680","DOIUrl":"10.1016/j.sandf.2025.101680","url":null,"abstract":"<div><div>In aeolian sand, the mechanical behavior of helical anchors involves complex performance evolution mechanisms that are not yet fully understood. This study employs a multi-scale integrated approach combining field tests, numerical simulations, and machine learning to systematically investigate the evolution laws of the bearing behavior of helical anchors. The results indicate: (1) The critical embedment depth threshold for helical anchors in aeolian sand is <em>H</em> = 5<em>D</em>; beyond this threshold, the load direction effect can be neglected. (2) Multi-plate helical anchors exhibit significant geometrically nonlinear superposition behavior. Dense spacing (<em>S</em>/<em>D</em> < 4) produces notable stress superposition effects (<em>η</em> = 1.15–1.32), whereas wide spacing (<em>S</em>/<em>D</em> ≥ 4) results in independent bearing units (<em>η</em> = 0.97–1.03). (3) The XGBoost machine learning model identifies the internal friction angle, anchor plate diameter, and embedment depth ratio as the most influential features affecting bearing capacity. Based on these control parameters, predictive equations for the bearing capacity coefficient <em>N</em><sub>q</sub> and soil lateral friction coefficient <em>K</em><sub>u</sub> were developed, with predictions showing excellent agreement with experimental data. This provides engineers with a reliable analytical framework for performance-based design. The study not only deepens the understanding of the behavioral mechanisms of helical piles in aeolian sand but also offers practical solutions for geotechnical engineering practice.</div></div>","PeriodicalId":21857,"journal":{"name":"Soils and Foundations","volume":"65 5","pages":"Article 101680"},"PeriodicalIF":3.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144889475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Liquefaction response of reclaimed soils from effective stress analysis 基于有效应力分析的复垦土液化响应

IF 3.3 2区工程技术

Soils and Foundations Pub Date : 2025-09-01 Epub Date: 2025-08-22 DOI: 10.1016/j.sandf.2025.101677

Riwaj Dhakal, Misko Cubrinovski

{"title":"Liquefaction response of reclaimed soils from effective stress analysis","authors":"Riwaj Dhakal, Misko Cubrinovski","doi":"10.1016/j.sandf.2025.101677","DOIUrl":"10.1016/j.sandf.2025.101677","url":null,"abstract":"<div><div>One-dimensional (1D) dynamic effective stress site response analysis (ESA) is performed for profiles at the port of Wellington, New Zealand (CentrePort), which contains reclamation fills comprised of gravel-sand-silt (G-S-S) mixtures and hydraulic fills. The first phase of the study realistically simulates three recent earthquake case histories while considering modelling uncertainties by using the PM4Sand and the Stress-Density constitutive models. The results illustrate possible mechanisms explaining the severity of liquefaction manifestation and soil ejecta characteristics observed in G-S-S fills through careful engineering interpretation of the response. Challenges for 1D ESA to explain complex manifestation patterns affected by two-dimensional variability in fill composition and response characteristics are illustrated for the hydraulic fills. In the second phase of analyses, ESA-based response measures are proposed to quantify the severity of the liquefaction response for a range of input seismic demands. The response characteristics show very small scatter despite using a range of different input ground motions and two soil constitutive models. Results illustrate the capability of ESA to capture details of the liquefaction response such as the similar threshold seismic intensity for liquefaction triggering of the loosely deposited fills, different maximum response of the sites reflecting the differences in the thicknesses of the fills, and the evolution of the response from triggering to maximum reflecting differences in depositional characteristics.</div></div>","PeriodicalId":21857,"journal":{"name":"Soils and Foundations","volume":"65 5","pages":"Article 101677"},"PeriodicalIF":3.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144889476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Seismic performance of an existing anchored quay wall in the Ravenna port (Italy) 拉文纳港（意大利）现有锚碇码头墙的抗震性能

IF 3.3 2区工程技术

Soils and Foundations Pub Date : 2025-09-01 Epub Date: 2025-08-22 DOI: 10.1016/j.sandf.2025.101676

Pierluigi Alesiani , Paolo Ruggeri , Viviene M.E. Fruzzetti , Giuseppe Scarpelli

{"title":"Seismic performance of an existing anchored quay wall in the Ravenna port (Italy)","authors":"Pierluigi Alesiani , Paolo Ruggeri , Viviene M.E. Fruzzetti , Giuseppe Scarpelli","doi":"10.1016/j.sandf.2025.101676","DOIUrl":"10.1016/j.sandf.2025.101676","url":null,"abstract":"<div><div>Evaluating the seismic performance of retaining walls is a significant engineering challenge due to non-linear soil-structure interaction, site response effects and ground motion properties. State of the art methods, based on non-linear dynamic analysis, are nowadays able to give reliable results when the numerical modeling is carried out with careful evaluation of seismic signals and appropriate choice of constitutive relationship for soils. However, a similar analysis is mostly restricted to relevant infrastructures. For large part of the practical situations, the simplified seismic analysis still represents the most used tool for design and verification. The new generation of Eurocode in Europe has introduced some innovations on the use of simplified seismic analyses making them more rationale and site-specific. In this paper, a case study involving the seismic evaluation of an existing anchored sheet-pile quay wall in the Ravenna port is presented. A well-known geotechnical setting and the data from an extensive field and laboratory investigation available for the area, allowed to perform both simplified and non-linear dynamic seismic analyses. The simplified seismic analysis according to the pseudo-static method outlined in the new draft of Eurocode 8 (FprEN1998:2024 TC250 – part 1 and 5), has been carried out and compared with the seismic performance of the quay wall evaluated through a 2D FEM non-linear dynamic analysis. Also, the seismic displacements of the quay wall from 2D FEM non-linear dynamic analysis were compared with recently proposed Newmark-type simplified methods. Relevant aspects of the presented case study are the very deep location of the bedrock, which required a separate model for site response analysis and 2D FEM non-linear dynamic analysis of the structures and the significant length of the wall embedment, due to poor geotechnical properties of the ground, which resulted in a pronounced spatial variation with depth of the ground motion.</div></div>","PeriodicalId":21857,"journal":{"name":"Soils and Foundations","volume":"65 5","pages":"Article 101676"},"PeriodicalIF":3.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144889477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental and numerical simulation for shear failure mechanism of silty clay–structure interface 粉质粘土-结构界面剪切破坏机理的实验与数值模拟

IF 3.3 2区工程技术

Soils and Foundations Pub Date : 2025-09-01 Epub Date: 2025-09-05 DOI: 10.1016/j.sandf.2025.101683

Boxin Wang , Zihao Wang , Wen Zhang , Jingjing Pan , Jiaqi Liu , Qing Wang

{"title":"Experimental and numerical simulation for shear failure mechanism of silty clay–structure interface","authors":"Boxin Wang , Zihao Wang , Wen Zhang , Jingjing Pan , Jiaqi Liu , Qing Wang","doi":"10.1016/j.sandf.2025.101683","DOIUrl":"10.1016/j.sandf.2025.101683","url":null,"abstract":"<div><div>The shear phenomenon between soil and foundation structure is common in foundation engineering. The change in the water content of stratum affects the shear behavior of soil and structure inevitably, especially in the region of cohesive soil with complex hydro-physical properties. In this paper, the silty clay in the Songnen Plain was used as a case study to reveal the shear failure mechanism of silty clay–structure interface under different water contents from multiple scales. First, the macroscopic mechanical characteristics were investigated by direct shear test and particle-image-velocimetry technology. To further explore the mesoscopic evolution law, this study proposed a novel FDM-DMDEM (Finite Difference Method–Determining Meso-parameter Discrete Element Method). This method enables direct calculation and assignment of meso-parameters required for the numerical model based on unsaturated soil theory, completely circumventing the laborious and subjective inverse calibration process inherent in conventional DEM. In this study, a 3D numerical model was established by using this coupling method and a parametric analysis was carried out. The results demonstrated that the meso-structure failure of silty clay within a certain range from the interface produced plastic deformation to form shear bands. Failure has two forms, namely, shear failure inside the shear band and shear failure outside the shear band. The increase in water content weakened the bonding force between particles, so that developing shear stress outside the shear band was difficult, resulting in typical shear failure inside the shear band. These findings could provide certain design references for the construction of foundation engineering in the Songnen Plain area.</div></div>","PeriodicalId":21857,"journal":{"name":"Soils and Foundations","volume":"65 5","pages":"Article 101683"},"PeriodicalIF":3.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145003913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Suffusion behavior under fluctuated hydraulic gradient conditions focusing on amount and size of soil particles contained in drainage 波动水力梯度条件下的渗流行为主要关注排水中所含土壤颗粒的数量和大小

IF 3.3 2区工程技术

Soils and Foundations Pub Date : 2025-08-01 Epub Date: 2025-07-03 DOI: 10.1016/j.sandf.2025.101600

Taichi Ishimaru , Motoyuki Suzuki , Asahi Komori

{"title":"Suffusion behavior under fluctuated hydraulic gradient conditions focusing on amount and size of soil particles contained in drainage","authors":"Taichi Ishimaru , Motoyuki Suzuki , Asahi Komori","doi":"10.1016/j.sandf.2025.101600","DOIUrl":"10.1016/j.sandf.2025.101600","url":null,"abstract":"<div><div>Suffusion is the detachment and migration of fine particles through voids connected by the matrices of coarse particles. Although water storage structures are known to be affected by fluctuations in seepage flow, due to fluctuations in the water storage levels brought about by rainfall and agricultural activities, the suffusion behavior when the hydraulic gradient is fluctuated is unclear. In this study, one-dimensional downward water-passing experiments with suffusion were performed using a cylindrical column device, and the changes in the amounts of the discharged water and soil particles, as well as the turbidity of the drainage over time, were examined. The behavior of suffusion was investigated from two viewpoints: the quantitative changes in the amount of discharged drainage and the amount of discharged soil particles due to the progress of suffusion, and the qualitative changes in the particle size composition of the discharged soil particles. A unique feature of this study was the tracing of the changes in the particle size composition of the discharged soil particles from the relationship between the turbidity and the concentration of drainage during suffusion. As a result, it was found that not only the amount of soil particles discharged by suffusion, but also the particle size composition of the discharged soil particles changed under both constant and fluctuated hydraulic gradient conditions.</div></div>","PeriodicalId":21857,"journal":{"name":"Soils and Foundations","volume":"65 4","pages":"Article 101600"},"PeriodicalIF":3.3,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144549030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0